iMac 27" , 4-5 years old , "dead"

Discussion in 'iMac' started by grimpus, Jan 3, 2015.

  1. grimpus macrumors newbie

    Joined:
    Jan 3, 2015
    #1
    Hi

    Any ideas ?

    It starts with stripes on the screen , goes into the "movin bar" but doesnt finish and after that just white screen .
    Can hear harddisk access .

    Thanks for any hints or things I can try :)
     
  2. thedeske macrumors 6502a

    Joined:
    Feb 17, 2013
    #2
    GPU Down?
     
  3. fastlanephil macrumors 6502a

    fastlanephil

    Joined:
    Nov 17, 2007
    #3
    Is that 2011 27" iMac with the 3.1 quad core i5 processor or the 3.4 quad core i7 processor?

    If so then there is a known problem with the graphics board on these models that Apple addressed during a repair program that ended a few years ago.
     
  4. grimpus thread starter macrumors newbie

    Joined:
    Jan 3, 2015
    #4
  5. fastlanephil, Jan 3, 2015
    Last edited: Jan 3, 2015

    fastlanephil macrumors 6502a

    fastlanephil

    Joined:
    Nov 17, 2007
    #5
    Maybe it's a hard drive problem. Have you tried booting from an external drive. This will tell you if it's the hard drive or something to do with the board.

    I back up my system drive using Carbon Copy Cloner on an external drive so I always have a way to boot up if the drive is starting to go bad.

    Have you tried an OS recovery install. You restart and quickly hold down the command and R keys until the recovery option comes up on the screen if it can in your case.

    You also could have a bad stick of memory. If you upgraded your memory and still have the old DIMMs try swapping them out.
     
  6. grimpus thread starter macrumors newbie

    Joined:
    Jan 3, 2015
    #6
    Problem found and repaired

    It was the graphic chip ..they say it can last for a while , but not forever ..

    Keeping my fingers crossed ..

    Thanks for yr helpfull inputs !:)
     
  7. N2bnfunn macrumors member

    Joined:
    Jul 24, 2011
  8. mmomega macrumors demi-god

    mmomega

    Joined:
    Dec 30, 2009
    Location:
    DFW, TX
    #8
    So did anyone ever figure out what model iMac this is? Size?
     

Share This Page